pKa Values
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(CH3)3COH
Base form: (CH3)3CO- pKa=18
HBr
Base form: Br- pKa= -9
C4H10
Base form: C4H9 pKa= 50
C6H6O
Base form: C6H5O- pKa=10
CH2=CH2
Base form: CH2=CH- pKa= 44
CH3CO2H (acetic acid)
Base form: CH3COO- pKa=4.8
CH=CH (triple bond)
Base form: CH=C- (triple bond) pKa=25
HCl
Base form: Cl- pKa= -7
HF
Base form: F- pKa=3.2
H2
Base form: H- pKa=35
H3O+ (hydronium)
Base form: H2O pKa= -1.7
H2SO4
Base form: HSO4- pKa= -9
HI (hydroiodic acid)
Base form: I- pKa= -10
N=CH (Triple bond)
Base form: N=C- (triple bond) pKa= 9.1
NH3 (ammonia)
Base form: NH2- pKa=38
NH4+ (ammonium)
Base form: NH3 pKa=9.4
H2O
Base form: OH- pKa= 15.7
R-OH
Base form: R-O- pKa=16-18